期刊
AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
卷 83, 期 1, 页码 126-134出版社
AMER SOC TROP MED & HYGIENE
DOI: 10.4269/ajtmh.2010.09-0776
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资金
- National Institute of Health [AI-42164]
- University of Florida
Interactions between environmental and biological factors affect the vector competence of Culex pipiens quinquefasciatus for West Nile virus. Three age cohorts from two Cx. p. quinquefasciatus colonies were fed blood containing a low- or high-virus dose, and each group was held at two different extrinsic incubation temperatures (FIT) for 13 days. The colonies differed in the way that they responded to the effects of the environment on vector competence. The effects of mosquito age on aspects of vector competence were dependent on the FIT and dose, and they changed depending on the colony. Complex interactions must be considered in laboratory studies of vector competence, because the extent of the genetic and environmental variation controlling vector competence in nature is largely unknown. Differences in the environmental (EIT and dose) and biological (mosquito age and colony) effects from previous studies of a. p. quinquefasciatus vector competence for St. Louis encephalitis virus are discussed.
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